Thomas whitson



I No- 784.

T. WHITSON.

Fire Place.

m/"iwwsw five/razor UNITED STATES PATENT OFFICE.

THOMAS WHITSON, OF NEW YORK, N. Y.

CONSTRUCTING THE FLUES OF OPEN FIREPLACES.

Specification of Letters Patent No. 784, dated June 14, 1838.

umns, up the back part of the same into the rear of the frieze, andthence into the chimney, or by means of a double damper, directly intothe chimney.

To enable others skilled in the business to make and use my improvedflue, I herein describe its construction and operation. Its generalappearance is that of an ordinary fire place with Doric columns. Thegrate is made in the ordinary form for burning coal or wood to either ofwhich this flue is adapted.

-I construct this fire place and its apparatus of any approvedmaterials, the exterior generally of Russia sheet iron. There are twoflues, one leading directly up the chimney and the other into the friezeand columns. There is a damper (L Figure 4 annexed drawing) whichregulates the direction of the smoke. When the fire is first kindled,and it is desirable to have a strong draft, the damper L (by means ofits handle D) is turned so as to close the flue leading to the apertureG Figs. 2 and 4 and open the one leading by the aperture E (the samefigures) directly up chimney. When the fire is kindled, and it isdesirable to throw as much heat as possible into the room thedamper L isturned back and the smoke passes through the flue in front, and throughthe aperture G. Figs. "2 and 4.- into the frieze A Fig. 1, H Fig. 2.Here it passes to either side and down the front division of the columnsJ and up the back side K to the back part of the frieze I. It thenescapes to the chimney, passing into the escape flue E by the passage F.

For the letters and figures of reference see annexed drawing, whichmakes a part of this specification.

The columns are made hollow of any form, hollow witha partition runninfrom the top down to within a few inches of the bottom. See section Fig.5. The frieze has also a partition midway from top to bottom, runningits whole length. See Figs. 2, 3 and 5. The partition down the columnsis but a continuation of the partition of the frieze.

This grate and flue, are so made that the 'whole can be set in front ofany ordinary fire place or grate at a little distance out, so that theheat given out in the back part ma be thrown into the room.

What I claim as my invention and desire to secure by Letters Patent isThe partitions, above described, of the top or frieze and the columnsboth of which I believe to be entirely new and a great improvement.

THOMAS WHITSON.

Witnesses:

OWEN G. WARREN, SAML. S. WHITSON.

